The Corps performed an extensive study comparing cofferdam versus in‐the‐wet construction methods. The report was prepared by consultants who had the necessary expertise. The recommendations of the consultants were then thoroughly reviewed at all levels within the Corps. We selected the in‐the‐wet method based on the information at the time that showed:
*shorter construction time
*less negative impact on navigation and
*fewer impacts to the environment.
Experience has shown the current in‐the‐wet construction method is more expensive and time consuming than originally envisioned and Corps’ headquarters has directed us to build a team of regional and national experts to consider alternative construction techniques such as building cofferdams for in‐the‐dry construction.